:root {
  --primary-color: #1890ff;
  --success-color: #52c41a;
  --warning-color: #faad14;
  --error-color: #f5222d;
  --heading-color: #222222;
  --text-color: #545454;
  --text-color-secondary: #888888;
  --disabled-color: #cccccc;
  --border-color: #e8e8e8;
  --box-shadow: 0 3px 6px -4px rgba(0, 0, 0, 0.12), 0 6px 16px 0 rgba(0, 0, 0, 0.08), 0 9px 28px 8px rgba(0, 0, 0, 0.05);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans', sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  color: var(--text-color);
  margin: 0;
  padding: 0;
  background-color: #f9f9f9;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--heading-color);
  font-weight: 600;
}

.page-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 24px;
}

.text-center {
  text-align: center;
}

.mb-20 {
  margin-bottom: 20px;
}

.mb-10 {
  margin-bottom: 10px;
}

.mt-20 {
  margin-top: 20px;
}

.pb-20 {
  padding-bottom: 20px;
}

/* Transition Animations */
.fade-enter-active,
.fade-leave-active {
  transition: opacity 0.3s ease;
}

.fade-enter-from,
.fade-leave-to {
  opacity: 0;
}

.slide-fade-enter-active {
  transition: all 0.3s ease-out;
}

.slide-fade-leave-active {
  transition: all 0.3s cubic-bezier(1, 0.5, 0.8, 1);
}

.slide-fade-enter-from,
.slide-fade-leave-to {
  transform: translateY(20px);
  opacity: 0;
}